Sero and Carriage Epidemiology of Pertussis in Urban and Rural Regions in Vietnam
Michiko Toizumi,
Lien Thuy Le,
Hien Anh Thi Nguyen
et al.
Abstract:The underestimation of the pertussis burden prompted our study to investigate the prevalence of recent pertussis infection, its associated factors, and antibody titer changes in the same individuals in Vietnam. Two cross-sectional surveys were conducted in Nha Trang in 2017 and Quang Ngai in 2019, representing high- and low-vaccine-coverage areas, respectively. Serum anti-pertussis toxin immunoglobulin-G (anti-PT IgG) ≥ 62.5 IU/mL by ELISA indicated infection in the previous 12 months. In Nha Trang, the partic… Show more
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